Results 151 to 160 of about 114,509 (361)

Great Barrier Reef Marine Parks Zoning MAP 15 - Offshore Shoalwater Bay [PDF]

open access: yes, 2017
Zoning map of offshore Shoalwater Bay - Edition VReplaces Edition IV (2011)

core  

Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres

open access: yesAdvanced Engineering Materials, EarlyView.
This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann   +3 more
wiley   +1 more source

Geochemistry of spodumene from pegmatites of the Laghman granitoid complex, Afghanistan

open access: yesЗаписки Горного института
The article presents the first data on the rare element contents in the compositions of spodumene from pegmatites of the Laghman granitoid complex in Eastern Afghanistan, the Kolatan, Digal, Gulsalak, and Tsamgal deposits.
Aleksandr N. Evdokimov   +1 more
doaj  

Effect of Oxygen Content on Surface and Subsurface Integrity During Turning of Ti–6Al–4V

open access: yesAdvanced Engineering Materials, EarlyView.
This study examines how oxygen content in the ambient atmosphere affects the surface and subsurface properties of Ti–6Al–4V during turning. Results show that oxygen does not influence surface roughness. However, machining in an extremely high vacuum‐adequate atmosphere increases surface hardness by up to 7.8% and induces compressive residual stresses ...
Benjamin Bergmann   +3 more
wiley   +1 more source

Expanding protected areas and incorporating human resource use: a study of 15 forest parks in Ecuador and Peru

open access: yesSustainability: Science, Practice, & Policy, 2006
Data from legal records, management plans, and interviews with 63 local experts reveal the substantial expansion of 15 protected areas (PAs) of forest in Ecuador and Peru during the last two decades.
Lisa Naughton-Treves   +8 more
doaj  

Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere

open access: yesAdvanced Engineering Materials, EarlyView.
A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz   +4 more
wiley   +1 more source

THE EFFECT OF RURAL ZONING ON THE ALLOCATION OF LAND USE IN OHIO

open access: yes
By incorporating the spatially arrangement of counties relative to each other, this paper uses a land use share model to investigate the possibility that the allocation of land use in one county could be influenced by not only the degree to which the ...
Libby, Lawrence W.   +2 more
core  

The Gray Zone

open access: yes, 2022
The Gray Zone ∗ Federico Crudu† University of Siena and CRENoS Roberta Di Stefano ‡ Sapienza University of Rome Giovanni Mellace§ University of Southern Denmark Silvia Tiezzi¶ University of Siena March 2022 Abstract On March 23, 2020, in response to the COVID-19 pandemic, Italy declared a nation- wide lockdown.
Federico Crudu   +3 more
openaire   +2 more sources

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

open access: yesAdvanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios   +5 more
wiley   +1 more source

Near‐Field Electrospinning Micro‐Printhead Achieves Precise Control of Nanofiber Deposition

open access: yesAdvanced Engineering Materials, EarlyView.
A micro‐printhead for near‐field electrospinning enables reproducible deposition of polymer nanofibers with diameters below 50 nm. Systematic parameter studies uncover the mechanisms linking operating conditions to fiber morphology, paving the way for precise and low‐cost nanoscale 3D manufacturing.As a high‐resolution, cost‐effective, and rapid ...
Han Xu, Dario Mager, Jan G. Korvink
wiley   +1 more source

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